Results 251 to 260 of about 48,085 (295)

A contribution to the yttrium alloying systematics: The yttrium-thallium system

Journal of the Less Common Metals, 1989
Abstract The Y-Tl system was examined using differential thermal analysis, metallography, electron probe microanalysis and X-ray examination. Five intermediate phases were found to exist: Y 5 Tl 3 (m.p. 1470°C), Y 5 Tl 3 + x , YTl (which decomposes at 1220 °C), Y 3 Tl 5 (which decomposes at 980 °C) and YTl 3 (which decomposes at 880 °C ...
SACCONE, ADRIANA, DELFINO, STEFANO, CACCIAMANI, GABRIELE, FERRO, RICCARDO   +3 more
openaire   +1 more source

Thermodynamic study of the system yttrium+yttrium sesquioxide A refinement of the vapor pressure of yttrium

The Journal of Chemical Thermodynamics, 1970
Abstract The mass effusion and mass spectrometric methods have been combined to measure over the temperature range 1340 to 2100 K the vapor pressure of solid and liquid yttrium and the partial pressure of yttrium in equilibrium with several metal solutions containing unsaturated and saturated amounts of sesquioxide.
R.J Ackermann, E.G Rauh, R.R Walters
openaire   +1 more source

Yttrium‐Amidopyridinate Complexes: Synthesis and Characterization of Yttrium‐Alkyl and Yttrium‐Hydrido Derivatives

European Journal of Inorganic Chemistry, 2010
AbstractAryl‐ or heteroaryl‐substituted aminopyridine ligands (N2HAr) react with an equimolar amount of [Y(CH2SiMe3)3(thf)2] to give yttrium(III)‐monoalkyl complexes. The process involves the deprotonation of N2HAr by a yttrium alkyl followed by a rapid and quantitative intramolecular sp2‐CH bond activation of the aryl or heteroaryl pyridine ...
Lapo Luconi, Dmitrii M. Lyubov, Claudio Bianchini, Andrea Rossin, Cristina Faggi, Georgii K. Fukin, Anton V. Cherkasov, Andrei S. Shavyrin, Alexander A. Trifonov, Giuliano Giambastiani   +9 more
openaire   +1 more source

ON THE FORMATION OF EXCITED YTTRIUM PARTICLES UNDER ION BOMBARDMENT OF YTTRIUM AND YTTRIUM ALUMINUM GARNET

Problems of Atomic Science and Technology, 2023
Emission spectra of excited yttrium particles ejected from the surface of the yttrium metal and yttrium aluminum garnet (YAG) at Ar+ ions are studied. The efficiency of yttrium particles excitation defined from experimental data. The assumption is made that the difference in the excitation efficiency for yttrium atoms and ions is due to the different ...
I.О. Afanasievа, V.V. Bobkov, V.V. Gritsyna, Yu.I. Kovtunenko, D.I. Shevchenko   +4 more
openaire   +1 more source

Scandium, yttrium and the lanthanides

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
John G. Brennan, Andrea Sella
openaire   +1 more source

Vacancies and interstitials in yttrium

Journal of Physics: Condensed Matter, 2019
Abstract The paper deals with the first principles simulation of formation energies and migration barriers of self point defects, including vacancies, di-vacancies and single interstitial atoms, in metallic yttrium.
V A Borodin, P V Vladimirov
openaire   +3 more sources

Investigation of yttrium and yttrium hydride by AES and REELS

Applied Surface Science, 1988
Abstract The results of combined investigations by Auger electron spectroscopy (AES) and reflection electron energy loss spectroscopy (REELS) of thin films of yttrium and yttrium hydride are presented. The hydride phase was prepared by exposing evaporated metal films to hydrogen in a high pressure reaction chamber connected to the main UHV vessel ...
P. Bracconi, E. Pörschke, R. Lässer
openaire   +1 more source

Anisotropy of yttrium microhardness

Physica Status Solidi (a), 1981
Polar and azimuthal diagrams of the microhardness of yttrium single crystals are constructed. The polar diagram of the microhardness in the (112x) planes with the c axis is close in its form to an ellipsoid of rotation around the [0001] direction with axes 90 and 40 kg/mm2.
I. I. Papirov, V. V. Vorobev, A. I. Pikalov, N. I. Moreva   +3 more
openaire   +1 more source

Thermal transformation of yttrium hydroxides to yttrium oxides

Thermochimica Acta, 1988
Abstract The reaction between aqueous solutions of yttrium salts (chloride and nitrate) at constant concentration and alkaline solutions (sodium and ammonium hydroxides) were investigated under different conditions. As a result, amorphous and hexagonal yttrium hydroxides, Y(OH)3, were formed and in addition monoclinic yttrium hydroxide, α-Y(OH)3, was
Taichi Sato, Satoshi Imaeda, Keiichi Sato   +2 more
openaire   +1 more source

Survey of the Mechanical Properties of Yttrium and Yttrium Alloys

1960
A survey of the mechanical properties of yttrium and the effects of fifteen different elemental impurities and alloying additions on its tensile strength, ductility, and hardness are described. These properties were found to be relatively insensitive to small additions of most of these elements.
O. N. Carlson, D. W. Bare, E. D. Gibson, F. A. Schmidt   +3 more
openaire   +1 more source